/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.catalina.connector;

import javax.servlet.ServletOutputStream;
import java.io.IOException;

/**
 * Coyote implementation of the servlet output stream.
 *
 * @author Costin Manolache
 * @author Remy Maucherat
 */
public class CoyoteOutputStream
		extends ServletOutputStream {


	// ----------------------------------------------------- Instance Variables

	protected OutputBuffer ob;


	// ----------------------------------------------------------- Constructors

	protected CoyoteOutputStream(OutputBuffer ob) {
		this.ob = ob;
	}


	// --------------------------------------------------------- Public Methods

	/**
	 * Prevent cloning the facade.
	 */
	@Override
	protected Object clone()
			throws CloneNotSupportedException {
		throw new CloneNotSupportedException();
	}


	// -------------------------------------------------------- Package Methods

	/**
	 * Clear facade.
	 */
	void clear() {
		ob = null;
	}


	// --------------------------------------------------- OutputStream Methods

	@Override
	public void write(int i)
			throws IOException {
		ob.writeByte(i);
	}

	@Override
	public void write(byte[] b)
			throws IOException {
		write(b, 0, b.length);
	}

	@Override
	public void write(byte[] b, int off, int len)
			throws IOException {
		ob.write(b, off, len);
	}

	/**
	 * Will send the buffer to the client.
	 */
	@Override
	public void flush()
			throws IOException {
		ob.flush();
	}

	@Override
	public void close()
			throws IOException {
		ob.close();
	}


}

